[  516.662578] bond0: (slave eth0): making interface the new active one
[  516.662640] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.852067] bond0: (slave eth0): Releasing backup interface
[  520.946835] bond0: (slave eth0): Enslaving as an active interface with an up link
[  525.139696] bond0: (slave eth0): Releasing backup interface
[  525.165777] bond0 (unregistering): Released all slaves